Numix White is a Gtk 3 and Gtk 2 theme, based of the original Numix theme ([link]

However, it is whiter and has a more elegant look and feel. It also contains themes for Gnome, Unity, Xfce, Pantheon and Openbox, and is compatible with Gnome 3.6 and Gnome 3.8. Gtk 2 theme requires the Murrine engine.

There are the folders inside, one for Gtk 3.6 and lower, and one for Gtk 3.8 - extract the folder depending on what version of Gtk you have.Installation instructions are included.

Edit: Some nice guy called Diego has also made an AUR for this theme, see here: [link]

Hmm I think there is too much white in here.A black panel for one I think is a must here.Like in your preview shot.A black panel by default would look way better.Also, a pure white doesn't seem right.I think it would look more professional with shades of white.You should put up a screenshot of this theme with the Faenza icon theme also preferably Faenza black(black folders) maybe even awoken but I think faenza would be way better.Again it would give it a more pro look rather then these amateurish elementary icons >.>

The main concept behind the theme was for everything to blend seamlessly together - so the title-bar buttons would look like they were part of the content area. This is why everything is a pure white colour.

Also, I can't really change the theme much now that it's been downloaded hundreds of times (for the sake of consistency across machines) but I'll definitely consider your views when making future themes.